Abstract: The disclosed embodiments relate to functional and decorative lighting. A transparent body (100) comprises a plurality of light guides (130, 140) forming a matrix. Light is emitted from light sources (210, 220). In the cells of the matrix in which light from different light sources (210, 220) intersects, the light is mixed which results in different cells having different colors.

Abstract: The disclosed embodiments relate to functional and decorative lighting. At least one control device (200a, 200b) is connected to a plurality of lighting elements (2000). The control devices (200a, 200b) are arranged to control lighting effects of the plurality of lighting elements (2000).

Abstract: A pawn (10) for use on a board (21) is provided. The pawn (10) is arranged to provide a trigger signal upon a touch of a triggerable part of the pawn (10) by a user, and comprises communication means for communicating the trigger signal to a board (21). The pawn (10) comprises at least two separate triggerable sub-parts (11, 12) for, upon a touch of each respective one of the at least two separate triggerable sub-parts (11, 12) by a user, respectively providing a first and a second trigger signal. The first and the second trigger signal are mutually distinguishable. Such a pawn (10) can easily be used for activating a certain function of a set of functions. A function is selected by touching a corresponding triggerable sub-part (11, 12).

Abstract: An apparatus for waking up a user, the apparatus (1) comprising a light source (3) that is adapted to produce a light effect (L), such as a light beam, that is directed to a user, or at least to a user's head, wherein the apparatus (1) comprises means for displacing the light effect (L) in an upward (Ru) or downward (Rd) direction during a period of time, in order to change a position of the light effect with respect to the user, or at least to the user's head, wherein the means to displace the light effect (L) is adapted to displace the light effect (L) gradually along an amount of displacement during the time period, for instance during a wake-up period until reaching a final wake-up time.

Abstract: The invention provides an illumination device (1) comprising a lighting unit (2). The lighting unit (2) comprises a light source (100) and a substantially flat collimator (200), arranged to collimate light source light (111). The collimator (200) has an entrance window (210), an edge window (220), a top collimator surface (201), a bottom collimator surface (202), a first collimating side edge (230) and a second collimating side edge (240). The lighting unit has an optical axis (O). One or more of the top collimator surface (201), the bottom collimator surface (202), the first collimating side edge (230) and the second collimating side edge (240) comprise n*½ grooves (300), wherein n is a positive integer number, and wherein the grooves (300) independently have a longitudinal axis (301) having a groove direction angle (?) with the optical axis (O) ?0° and & and <90°.

Abstract: A puzzle includes light emitting diodes integrated in the puzzle in order to achieve a high level of interaction between the user and the puzzle. The puzzle can adapt to the players needs by increasing or decreasing the difficulty level or by giving the user hints. The puzzle functions not only as a puzzle but may also function as an ambient light (or object) of programmable color point (and layout) when not in use as a puzzle.

Abstract: This invention relates to a lighting module (101) comprising a carrier (103), a plurality of LED groups (109), arranged in an array on the carrier (103), a mesh (105), arranged at the carrier (103), and a front diffuser plate (107) arranged in front of the mesh (105). The mesh (105) has walls, which are arranged in a geometrical pattern forming a plurality of cells (113), such that the light emitted from at least some of the LED groups, which are adjacent to each other, is mixed before passing the diffuser plate.

Abstract: The invention provides an illumination device (1) comprising a lighting unit (2). The lighting unit (2) comprises a light source (100) and a substantially flat light guide (200), arranged to collimate light source light (111). The light guide (200) has an entrance window (210), an edge window (220), a first light guide surface (201), a second light guide surface (202), a first side edge (230) and a second side edge (240). One or more of the first light guide surface (201) and the second light guide surface (202) comprise a plurality of grooves (300). In this way, latitudinal collimation is obtained.

Abstract: The illumination system has an array of light sources (1, 1?, . . . ) such as an array of light emitting diodes arranged in a pre-determined manner in a first plane (11), wherein dsource is a characteristic dimension of the spatial arrangement of the light sources in the first plane. An array of associated lenses (2, 2?, . . . ) is arranged in substantially the same pre-determined manner in a second plane (12). Each lens has substantially the same focal distance flens. The array of lenses is provided at a plane distance dplane from the array of light sources. The plane distance dplane is substantially equal to the focal distance flens of the lenses. The illumination system has displacement means for displacing the array of lenses with respect to the array of light sources so as to obtain a plurality of directional light beams projecting spots on a projection plane arranged at a projection distance dprojection from the illumination system, wherein dprojection?10×dsource and dprojection?10×dplane.

Abstract: The invention relates to a an interactive light system for a clothing rack, particularly for creating attraction lighting for clothes hanging on a rail of the clothing rack. A basic idea of the invention to control light sources integrated in the clothing rack depending on the detection of an object such as a person. This allows implementing a kind of an interactive lighting function, and furthermore attraction functions for shoppers. An interactive light system (10) according to an embodiment of the invention for a clothing rack (12) comprises one or more light sources (14) integrated in the clothing rack (12), one or more sensors (16, 18, 20) adapted to detect an object (22), and a control unit (24) which receives signals (26) from the sensors (16, 18, 20) and is adapted to evaluate the received signals (26) and to generate control signals (28) for the light sources (14) controlling the lighting depending on the evaluation.

Abstract: A lighting arrangement for presentation of a first object is disclosed. The arrangement comprises an accent lighting assembly and a decoration lighting assembly. The accent lighting assembly is arranged to provide illumination of the first object, has at least one accent light characteristic, and comprises at least one accent light generating device. The decoration lighting assembly is arranged to provide background lighting of the first object, has at least one decoration light characteristic, and comprises at least one decoration light generating device. The arrangement also comprises at least one sensor, arranged to detect a distance between the sensor and a second object and to generate a signal value representing the distance, and a controller arranged to receive the signal value from the at least one sensor and to adapt the accent light characteristic and the decoration light characteristic based on the signal value. Corresponding use, method and computer program product are also disclosed.

Abstract: A touch screen includes light emitters and light detectors arranged around a periphery thereof. The position, orientation, shape and/or size of objects may be determined by switching the light emitters on one-by-one and detecting shadows caused by the objects. The objects include at least a first part with optical properties of a first type and a second part with optical properties of a second different type. By determining the optical phenomena caused by the second part, the orientation of the objects may be determined and/or the objects may be recognized or identified.

Abstract: The invention describes a method of controlling the color of the light output of a lamp (1), which method comprises electronically collecting color data pertaining to a first color (C1) to obtain a first color description (D1), electronically collecting color data pertaining to a second color (C2) to obtain a second color description (D2), and combining the first color description (D1) with the second color description (D2) to obtain a target color description (DT). The target color description (DT) is transferred to a control unit (4) of the lamp (1), and the lamp (1) is driven according to the target color description (DT) to give a target color light output. The invention also relates to a system (3) for controlling the color of the light output of a lamp.

Abstract: Light-based systems for communicating information associated with the formation of social connections are disclosed. One or more lighting controllers controlling individually controllable luminaires are used in conjunction with communication networks in order to identify and form remote light-based social connections. Additionally, visualization controllers are used in conjunction with visualization infrastructures, visualization actuators, localization systems and identification systems to visually identify proximally present potential social connections.

Abstract: A method of controlling a lighting system includes a learning procedure. The lighting system includes lighting modules and a controlling device. The lighting modules are arbitrarily arranged, and each lighting module can communicate with neighboring lighting modules via communication units arranged at sides of the lighting module. The learning procedure defines a lighting module arrangement and a communication network for communication between the controlling device and the lighting modules. During the learning procedure, a token is forwarded from one lighting module to another lighting module, while ensuring that all lighting modules are visited by the token. Further, geometric information about how the lighting modules are arranged in relation to each other is generated.

Abstract: The present invention relates to lighting device (10). The lighting device comprises a light guide plate (12), and at least one array of light emitting diodes (LEDs) (14), which LEDs are accommodated in holes arranged in the light guide plate, wherein each hole has: at least two side facets (18) through which light from the LEDs is to be laterally coupled into the light guide plate, and at least one corner (20) formed by two converging side facets of the at least two side facets. This promotes TIR at adjacent light sources and therefore diminishes losses due to absorption or scattering at adjacent holes.

Abstract: A device is disclosed for wireless control of color of light emitted by a lighting system. The lighting system comprises signal receiving means and means for adjusting the color of light emitted from at least one lighting element, in response to a received color control signal from the device. The device for wireless control comprises means for—generating color information data, said data being indicative of a desired color of light to be emitted by the lighting system, means for modulating a first carrier signal in accordance with the color information data, and means for transmitting said color control signal in the form of a beam of said first modulated carrier signal to the lighting system.

Abstract: The invention relates to a control device for controlling the hue of light emitted by a light source. The control device comprises a hue selection surface capable of displaying one or more hues available for said light of said light source and interaction detection means for detecting interaction between said hue selection surface and a user of said control device in selecting said hue for said light of said light source. The control device allows the user to select the desired hue for the light source simply by interacting with the hue selection surface that displays the available hues. Consequently, the control device can be operated easily and intuitively.

Abstract: The invention describes a method of performing a gaze-based interaction between a user (1) and an interactive display system (2) comprising a three-dimensional display area (D) in which a number of physical objects (10, 11, 12, 13, 14, 15, 16) is arranged, and an observation means (3), which method comprises the steps of acquiring a gaze-related output (30) for the user (1) from the observation means (3), determining a momentary gaze category (Go, Gdw, Gbo, Gnr) from a plurality of gaze categories (Go, Gdw, Gbo, Gnr) on the basis of the gaze-related output (30); and continuously generating display area feedback according to the momentary determined gaze category (Go, Gdw, Gbo, Gnr).

Abstract: The invention provides an illumination device (1) comprising a lighting unit (2). The lighting unit (2) comprises a light source (100) and a substantially flat light guide (200), arranged to collimate light source light (111). The light guide (200) has an entrance window (210), an edge window (220), a first light guide surface (201), a second light guide surface (202), a first side edge (230) and a second side edge (240). One or more of the first light guide surface (201) and the second light guide surface (202) comprise a plurality of grooves (300). In this way, latitudinal collimation is obtained.